Chemotherapy-Induced Constipation and Diarrhea: Pathophysiology, Current and Emerging Treatments
AuthorMcQuade, RM; Stojanovska, V; Abalo, R; Bornstein, JC; Nurgali, K
Source TitleFrontiers in Pharmacology
PublisherFRONTIERS MEDIA SA
Medicine and Radiology
Document TypeJournal Article
CitationsMcQuade, R. M., Stojanovska, V., Abalo, R., Bornstein, J. C. & Nurgali, K. (2016). Chemotherapy-Induced Constipation and Diarrhea: Pathophysiology, Current and Emerging Treatments. FRONTIERS IN PHARMACOLOGY, 7 (NOV), https://doi.org/10.3389/fphar.2016.00414.
Access StatusOpen Access
Gastrointestinal (GI) side-effects of chemotherapy are a debilitating and often overlooked clinical hurdle in cancer management. Chemotherapy-induced constipation (CIC) and Diarrhea (CID) present a constant challenge in the efficient and tolerable treatment of cancer and are amongst the primary contributors to dose reductions, delays and cessation of treatment. Although prevalence of CIC is hard to estimate, it is believed to affect approximately 16% of cancer patients, whilst incidence of CID has been estimated to be as high as 80%. Despite this, the underlying mechanisms of both CID and CIC remain unclear, but are believed to result from a combination of intersecting mechanisms including inflammation, secretory dysfunctions, GI dysmotility and alterations in GI innervation. Current treatments for CIC and CID aim to reduce the severity of symptoms rather than combating the pathophysiological mechanisms of dysfunction, and often result in worsening of already chronic GI symptoms or trigger the onset of a plethora of other side-effects including respiratory depression, uneven heartbeat, seizures, and neurotoxicity. Emerging treatments including those targeting the enteric nervous system present promising avenues to alleviate CID and CIC. Identification of potential targets for novel therapies to alleviate chemotherapy-induced toxicity is essential to improve clinical outcomes and quality of life amongst cancer sufferers.
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